CN1813317B - Novel superconducting articles, and methods for forming and using same - Google Patents
Novel superconducting articles, and methods for forming and using same Download PDFInfo
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- CN1813317B CN1813317B CN200480018114.3A CN200480018114A CN1813317B CN 1813317 B CN1813317 B CN 1813317B CN 200480018114 A CN200480018114 A CN 200480018114A CN 1813317 B CN1813317 B CN 1813317B
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000002887 superconductor Substances 0.000 claims abstract description 45
- 239000003381 stabilizer Substances 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 103
- 239000000463 material Substances 0.000 claims description 60
- 239000011248 coating agent Substances 0.000 claims description 32
- 238000000576 coating method Methods 0.000 claims description 32
- 238000004804 winding Methods 0.000 claims description 25
- 239000010949 copper Substances 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 230000008021 deposition Effects 0.000 claims description 12
- 239000004020 conductor Substances 0.000 claims description 10
- 239000010953 base metal Substances 0.000 claims description 8
- 239000013078 crystal Substances 0.000 claims description 6
- 238000009713 electroplating Methods 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 238000007747 plating Methods 0.000 claims description 4
- 241000954177 Bangana ariza Species 0.000 claims description 2
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 239000010970 precious metal Substances 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- 239000012790 adhesive layer Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000010408 film Substances 0.000 description 30
- 230000005540 biological transmission Effects 0.000 description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- 229910052751 metal Inorganic materials 0.000 description 14
- 238000000151 deposition Methods 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- 238000009826 distribution Methods 0.000 description 12
- 238000007735 ion beam assisted deposition Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 230000004888 barrier function Effects 0.000 description 6
- 229910000510 noble metal Inorganic materials 0.000 description 6
- 238000005240 physical vapour deposition Methods 0.000 description 5
- 229910052709 silver Inorganic materials 0.000 description 5
- 239000004332 silver Substances 0.000 description 5
- 239000000395 magnesium oxide Substances 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- 229910021645 metal ion Inorganic materials 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
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- 229910000679 solder Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910021521 yttrium barium copper oxide Inorganic materials 0.000 description 3
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 229910001431 copper ion Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 229910001026 inconel Inorganic materials 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000004549 pulsed laser deposition Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
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- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- HBAGRTDVSXKKDO-UHFFFAOYSA-N dioxido(dioxo)manganese lanthanum(3+) Chemical compound [La+3].[La+3].[O-][Mn]([O-])(=O)=O.[O-][Mn]([O-])(=O)=O.[O-][Mn]([O-])(=O)=O HBAGRTDVSXKKDO-UHFFFAOYSA-N 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
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- 238000010248 power generation Methods 0.000 description 1
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- 239000002994 raw material Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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Images
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N60/00—Superconducting devices
- H10N60/20—Permanent superconducting devices
- H10N60/203—Permanent superconducting devices comprising high-Tc ceramic materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N60/00—Superconducting devices
- H10N60/01—Manufacture or treatment
- H10N60/0268—Manufacture or treatment of devices comprising copper oxide
- H10N60/0661—Processes performed after copper oxide formation, e.g. patterning
- H10N60/0716—Passivating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9265—Special properties
- Y10S428/93—Electric superconducting
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
A superconducting tape is disclosed, including a substrate, a buffer layer overlying the substrate, a superconductor layer overlying the buffer layer, and an electroplated stabilizer layer overlying the superconductor layer. Also disclosed are components incorporating superconducting tapes, methods for manufacturing same, and methods for using same.
Description
Technical field
Relate generally to superconductive element of the present invention or superconductor components, relate more specifically to a kind of novelty superconductive tape, the power components of this superconductive tape and the use of this superconductive tape and manufacture method are housed.
Background technology
Superconductor material is also understood already known to technical staff.Since 1911 one, that people know always was the low temperature that (4.2K) just has superconducting property at the temperature that need to use liquid helium (low T
c) superconductor.Yet, found recently oxide-base high temperature (high T
c) superconductor.At about 1986, found that the first has the high-temperature superconductor (HTS) of superconducting property, i.e. YBa under higher than liquid nitrogen temperature (77 ° of K)
2cu
3o
7-x(YBCO), thereafter, developed in the past 15 years and comprised Bi
2sr
2ca
2cu
3o
10+yetc. (BSCCO) other material.High T
cthe development of superconductor has brought the trend of the economically feasible superconductor components of some these materials of application, this part be due on these superconductor liquid nitrogen plant costs that use lower than the more expensive Cryo Equipment of using liquid helium.
In countless possible purposes, the application in power industry at these materials of research in industry, is included in the application in generating, transmission of electricity, distribution and electric power storage.In this respect, the intrinsic resistance of estimating copper commercial electric power parts can cause very large loss in electric power, therefore, power industry is based on using high-temperature superconductor in the power equipment of power transmission and distribution cable, generator, transformer and fault current cutout and so on, to obtain significant efficiency.In addition, high-temperature superconductor other advantage in power industry comprises that comparing the numerical value that makes electric power process capacity with routine techniques improves 1 to 2 order of magnitude, the size (being area coverage (footprint)) that significantly reduces power equipment, reduces the impact on environment, safer.Although these potential advantages of high-temperature superconductor are very noticeable, manufacture on a large scale high-temperature superconductor and by its commercialization, still have many technical barriers.
In numerous difficult problems for commercialization of high-temperature superconductors, many difficult problems are about can be used to form the manufacture of the superconductive tape of various power components.First generation HTS band comprises the above-mentioned BSCCO high-temperature superconductor of use.This material is made discontinuous filament conventionally, and these filaments are embedded within noble metal (normally silver) matrix.For example, although these conductors can be made into the required very long length of power industry application (approximately several kilometers), due to the restriction of material and manufacturing cost, this band is commercially practicality still.
Therefore, a large amount of attentivenesss concentrate on the so-called second generation HTS with better commercial viability and are with.These bands rely on layer structure conventionally, this layer structure generally includes provides the flexible parent metal of mechanical support, at least one deck covers resilient coating (this resilient coating optionally comprises multiple film) on base material, covers the HTS layer on buffer film and cover the electric stabilized zone on HTS layer, and described electric stabilized zone is made by least one noble metal conventionally.Yet up to now, before by the complete commercialization of this second generation band, also having many engineering roadblocks and manufacturing a difficult problem has to be solved.
Therefore, according to above, in superconductor field, also have various demands, particularly provide commericially feasible superconductive tape, form the method for this superconductive tape and use the power components of this superconductive tape.
Summary of the invention
According to a first aspect of the invention, provide a kind of superconducting article, this superconducting article comprises base material, covers the resilient coating on base material, covers the superconductor layer on resilient coating and covers the electroplated stabilizer layer on superconductor layer.According to a concrete feature, described stabilized zone is mainly by base metal, and for example copper, aluminium and their alloys and mixts form.Noble metal covering layer can be provided between stabilized zone and superconductor layer.The stabilized zone of described plating can cover in two corresponding main surfaces of base material, or covers on two first type surfaces, or can seal base material, resilient coating and superconductor layer completely.These goods can be the form of the band of high aspect ratio.
According to another aspect of the present invention, provide a kind of method that is used for forming superconductive tape, the method comprises provides base material, and deposition has covered the resilient coating of base material, and has deposited superconductor layer covering resilient coating.In addition, by plating, deposit the stabilized zone that has covered superconductor layer.
According to a further aspect of the invention, provide a kind of power cable that comprises a plurality of superconductive tapes, described superconductive tape is manufactured according to first aspect of the invention described above.
According to a further aspect of the invention, provide a kind of power transformer that comprises armature winding and secondary winding, at least one winding comprises the wound coil of the superconductive tape that first aspect is manufactured according to the present invention.
According to a further aspect in the invention, provide a kind of generator, this generator comprises the axle being connected with rotor, and rotor comprises the electromagnet that comprises rotor coil, and generator also comprises stator, and stator comprises the conductor winding around rotor.Rotor coil and/or conductor winding comprise conventionally according to the superconductive tape of the invention described above first aspect.
According to a further aspect in the invention, provide a kind of power network, power network comprise many for generating electricity, the part of transmission and disttrbution.Be that power network comprises power station (power station comprises generator), transmission substation and many power transmission cables that are used for transmitting electric power from transmission substation, described transmission substation comprises that many are used for accept the electric power from power station, and boosted voltage for delivery of power transformer.Transmission substation receives electric power from power transmission cable, thereby carries out distribution, and transmission substation comprises and is a plurality ofly used for reducing voltage for the power transformer of distribution, also comprises that many are used for to the distribution cable of user's distribution.The specific features of this aspect according to the present invention, the many superconductive tapes that provide according to the invention described above first aspect are provided at least one above-mentioned power grid elements.
Another aspect of the present invention provides a kind of method of laying power cable, is sometimes also commonly referred to " drawing " cable.This method need to provide power cable coil, when power cable is inserted to conduit, launches coil, and pipeline is underground versatility pipeline.The structure of power cable as mentioned above, comprises the superconductive tape of first aspect according to the present invention.
Accompanying drawing summary
With reference to accompanying drawing, those skilled in the art can be well understood to the present invention, and a large amount of target of the present invention, feature and advantage be it will be apparent to those skilled in the art.
Fig. 1 shows HTS conductive strips according to an embodiment of the present invention.
Fig. 2 shows the sectional view of the HTS band of another execution mode according to the present invention, and the stabilized zone that wherein whole superconductive tape is plated is sealed.
Fig. 3 is the sectional view of the two-sided HTS conductive strips of another execution mode according to the present invention.
Fig. 4 shows electroplating process according to an embodiment of the present invention.
Fig. 5 shows the result of current overload test.
Fig. 6 demonstration is used for evaluating HTS with the result of the test of critical current overload impact.
Fig. 7 and Fig. 8 show the power cable that superconductive tape is housed.
Fig. 9 shows according to the power transformer of one aspect of the invention.
Figure 10 shows according to the generator of one aspect of the invention.
Figure 11 shows power network according to a further aspect of the present invention.
Similar or identical identical numeral for part in different accompanying drawings.
Invention execution mode
Fig. 1, has shown the cardinal principle layer structure of HTS conductor according to an embodiment of the present invention in figure.HTS conductor comprises base material 10, is covered with the resilient coating 12a of base material 10, and then HTS layer 14a be covering layer 16a (being generally layer of precious metal) and stabilized zone 18a (being generally base metal).
Specially suitable substrate material comprises nickel based metal alloy, and example is the alloy of inconel class as is known.Inconel has required thermal property, chemical property and engineering properties, comprises the coefficient of expansion, thermal conductivity, Curie temperature, hot strength, yield strength and elongation.These metals can be buied with the form of the band of reeling conventionally, and particularly suitable is manufactured HTS band, manufacture HTS with time conventionally adopt the band processing of (reel-to-reel) of roll-to-roll.
In one embodiment, base material is processed, made it have and deposit subsequently the required surface nature of each composition layer of HTS band.For example, effects on surface carries out slight polishing, to reach required evenness and surface roughness.In addition, can on twin shaft, form texture by for example known RABiTS (base material of the biaxial texture (texured) that roller is auxiliary) technical finesse base material, this is understandable to those skilled in the art.
Refer now to resilient coating 12a, this resilient coating can be individual layer, or more generally multiple film, consists of.The most typically say, resilient coating comprises that twin shaft has the film of texture, and the crystal texture of this film conventionally crystallographic axis in membrane plane or outside membrane plane is arranged.Can form this biaxial texture by IBAD.Those skilled in the art can understand, IBAD is the acronym of ion beam assisted depositing, this technology can be used for forming the resilient coating that suitably has texture valuably, has the resilient coating of texture to be used for forming subsequently the HTS layer with required crystal orientation, to obtain good superconducting property by this.Magnesium oxide is the material that IBAD film is selected conventionally, can be
, for example
.According to No. 6190752 institute of United States Patent (USP), define and describe, IBAD film has rock salt shape crystal structure, and described patent documentation is incorporated herein by reference.
Resilient coating can comprise other layer, for example, between IBAD film and base material, and the barrier film directly contacting with these two.In this, barrier film should be formed by the oxide of yittrium oxide and so on, is used for base material and IBAD film to separate.Barrier film also can be formed by the non-oxidized substance of silicon nitride and carborundum and so on.The method of suitable deposition barrier film comprises chemical vapour deposition and comprises the physical vapour deposition (PVD) of sputter.Conventionally the thickness of barrier film is about
.In addition, resilient coating also can comprise the epitaxial film being formed on above IBAD film.About this point, epitaxial film can increase the thickness of IBAD film effectively, wishes mainly to use the material identical with IBAD layer (for example MgO) to make.
In using the execution mode of MgO base IBAD film and/or epitaxial film, between MgO material and the material of superconductor layer, can there is lattice mismatch.Therefore, resilient coating also can comprise another layer of buffer film, reduces HTS layer and IBAD film below and/or the lattice constant mismatch between epitaxial film especially by this buffer film.This buffer film can be formed by the material of YSZ (zirconia of stabilized with yttrium oxide) ruthenic acid strontium, lanthanum manganate and so on, and the ceramic material by perovskite structure forms conventionally.Can be by various physical vapor deposition techniques deposition buffer films.
Although mainly concentrate on above by the texture forming method of IBAD and so on and realize biaxial texture formation film in buffering lamination,, also can originally form biaxial texture with it at substrate surface.In the case, resilient coating is having epitaxial growth on the base material of texture conventionally, with the twin shaft remaining in resilient coating, forms texture.Form twin shaft having the method for the base material of texture is a method that is called RABiTS (the auxiliary twin shaft of roller has the base material of texture) in this area, and the method is generally understood in this area.
Described high-temperature superconductor (HTS) layer 14a is selected from any high temperature superconducting materia under higher than liquid nitrogen temperature 77K with superconducting property conventionally.These materials can comprise for example YBa
2cu
3o
7-x, Bi
2sr
2ca
2cu
3o
10+y, Ti
2ba
2ca
2cu
3o
10+yand HgBa
2ca
2cu
3o
8+y.One class material comprises REBa
2cu
3o
7-x, wherein RE is rare earth element.In previous materials, preferably use the YBa that is commonly called YBCO
2cu
3o
7-x.HTS layer 14a can be by comprising that any one method that thick film forming technology and film form technology forms.Preferably the thin film physics vapor deposition techniques of pulsed laser deposition (PLD) and so on can be used for to high deposition rate, or the processing for lower cost and large surface area by chemical vapour desposition technology.Conventionally, the thickness of HTS layer is about 1-30 micron, is more generally about 2-20 micron, for example, be about 2-10 micron, to reach the required current rating of HTS layer 14a.
Conventionally with covering layer 16a and stabilized zone 18a, carry out electric stabilisation, help prevent HTS that " burning " occurs in actual use.Specifically, when cooling, when breaking down or surpassing critical current density thereby HTS layer and do not have resistance in superconducting state, layer 16a and 18a help electric charge Continuous Flow to cross HTS conductor.Conventionally noble metal is prevented from, between one or more layers stabilized zone and HTS layer 14a, undesirable interaction occurs as covering layer 16a.Conventionally gold, silver, platinum and palladium for noble metal.Because silver-colored cost is low, be convenient to processing, conventionally use silver.Conventionally covering layer 16a is made enough thickly, in case the component of stabilized zone 18a, to HTS layer 14a, undesirable diffusion occurs, but in order to reduce costs (raw material and processing cost), conventionally made very thin.The thickness of covering layer 16a is about 0.1-10.0 micron conventionally, for example, be about 0.5-5.0 micron.Can, by various deposition techniques covering layer 16a, comprise the physical vapor deposition of dc magnetron sputtering and so on.
According to the specific features of embodiment of the present invention, with stabilized zone 18a, cover superconductor layer 14a, with embodiment shown in Fig. 1, cover covering layer 16a specifically, and directly contact with covering layer 16a.Stabilized zone 18a as protective layer/shunting layer to improve the stability of harsh and unforgiving environments condition and superconductivity quench.This layer is normally fine and close and be thermal conductance and electrical conductance, is used for shunt current when superconductor layer failure.Conventionally, use the middle junction condensation material of solder flux or scolder and so on that preformed copper strips is laminated on superconductive tape, form these layers.Other technology is mainly physical vapor deposition, is generally sputter.Yet these application technology costs are very high, be not specially adapted to business large-scale production operation.According to the specific features of execution mode, stabilized zone 18 forms by plating.According to this technology, can electricity consumption be plated in the quick material thick-layer that forms on superconductive tape, galvanoplastic are a kind of lower-cost methods, can effectively manufacture the compacted zone of heat-conducting metal and conducting metal.According to a feature, during deposition stabilized zone, do not need to rely on and use middle close binder (for example fusing point is less than about the solder layer (comprising solder flux) of 300 ℃).
Conventionally superconductive tape is immersed in the solion of the metal that comprises needs depositions and electroplates (also referred to as electro-deposition).The surface of band is connected with external power source, and electric current enters solution by surface, makes metal ion (M
z-) and electronics (e
-) reacting forms metal (M).
M
z-+e
-=M
In the situation that there is no side reaction, in electrolytic process, be transported to the electric current of conductive surface and the amount of plated metal be directly proportional (Faraday's laws of electrolysis).By this relation, can control at an easy rate the quality that forms stabilized zone 18a, thereby control its thickness.
Although normally with regard to copper, should be noted that also and can use other metal, comprise aluminium, silver, gold and other thermal conductivity and conductive metal above.Yet, need to be to reduce with base metal the total material cost that forms superconductive tape conventionally.
Although the side that description above and Fig. 1 have described by electroplating at superconductive tape forms stabilized zone 18a, should note also can on the contrary first type surface of superconductive tape, being coated with, in fact, can total be coated with and this structure is encapsulated.About this point, Fig. 2.
Fig. 2 is the sectional view that shows another execution mode of the present invention, wherein whole superconductive tape is all sealed by the first stabilized zone 18a and the second stabilized zone 18b that is positioned at superconductive tape corresponding main surfaces, the first stabilized zone 18a and the second stabilized zone 18b combine at the side surface of superconductive tape, conventionally form protruding side or side bridge 20a and 20b.In refrigeration, break down, in the situation such as superconduction quencher (superconductivity quench), need this special structure further improve electric current and further protection HTS layer 14a.By forming the first stabilized zone 18a and the second stabilized zone 18b, the cross-sectional area of deposited stabilized zone is doubled, thereby being obtained, improves current capacity.Can between stabilized zone 18a and 18b, provide electric continuity by side bridge portion 20a and 20b.In this regard, can need side bridge portion 20a and 20b to there is genuine radius of curvature, form convex surface, thereby can further reduce the charge accumulated of HTS power equipment when high pressure.In addition, for the electric conducting material that is applicable to base material 10, can be by the current capacity of sealing as shown in Figure 2 to provide higher.The side bridge portion that extends and form the side of band in the side of band can be base material itself provides electrical connection, can increase the current capacity of coated conductor (band).
Although Fig. 2 do not show, conventionally need to be on whole superconductive tape, depositing noble metal layer on superconductive tape side particularly, the material of superconductor layer 14a and side bridge portion 20a and 20b (can be the base metal of above-mentioned copper or aluminium and so on) is isolated.
Fig. 3 has shown another execution mode of the present invention.Like this execution mode and Fig. 2 institute, structure is a bit similar, but forms bilateral structure, and this structure comprises the first resilient coating 12 and the second resilient coating 12b that is covered with respectively base material 10 first surface 11a and 11b.In addition, on the first covering layer 16a and the second covering layer 16b, add the first superconductor layer 14a and the second superconductor layer 14b.This special structure is by being all coated with superconductor layer 14a and 14b in base material both sides, thereby current capacity can be further provided valuably.
Fig. 4 exemplarily shows galvanoplastic according to an embodiment of the present invention.Conventionally by the method for roll-to-roll, electroplate, in the method, superconductive tape enters from charging volume 32, by reel spool dish 34, superconductive tape is batched, thereby makes superconductive tape pass through electroplate liquid 27.Now band is by a plurality of rollers 26.Can make roller strap negative electrical charge, thereby make one or more layers covering layer and/or base material with negative electrical charge, the metal ion that provides in electrolytic deposition solution is provided.Execution mode in Fig. 4 has shown for two anodes 28 of double-sided deposition and 30, but also can carry out one-side electroplating with an anode 28.As above discuss, electroplate liquid 27 comprises the metal ion of electroplating required kind conventionally.For example, under the concrete condition of copper, this solution can be the copper-bath that comprises copper sulphate and sulfuric acid.Anode 28,30 provides electroplates required feed metal, can by high-purity copper plates, be formed simply.Although it should be noted that and can apply electrical bias (bias) by pair roller 26, thereby bias voltage superconductive tape also can apply bias voltage outward in solution bath, to reduce at roller, undesirable metal deposition originally occur with it.
In a specific embodiment, use above-mentioned electroplating technology.Specifically, by dc magnetron sputtering, silver is sputtered on sample, form the covering layer of 3 micron thickness.These samples are placed in to copper-bath, and apply bias voltage, make covering layer form negative electrode, anode is copper coin.Electroplate, form nominal thickness and be about the copper layer of 40 microns.Test to this sample has below been described.
That is the YBCO HTS layer that, 1 centimetre wide, 4 centimeter length, 1.7 micron thickness, critical current Ic is about to 111A applies the current loading of 326A.Sample is transshipped, and the voltage data of collection as shown in Figure 5.Voltage at 326A record is 44.4 millivolts, and this is equivalent to the heat dissipation of 3.6 watts/square centimeter, lower than 5-20 watt/square centimeter of the critical heat flux density under Liquid Nitrogen Cooling Condition.This conductor that has been coated with 50 microns of stabilized zones of this explanation can conduct " burning " not occur higher than the electric current of 326A in liquid nitrogen.In the situation that there is no stabilizer, at the setting power of 326A, dissipate higher than 62.5 kilowatts/square centimeter.The stabilized zone that above explanation is electroplated can be protected superconducting film as strong shunting layer, prevents that it from burning when overload.
After overload, sample is applied to load for the second time.As shown in Figure 6, it is front identical with Ic after overload that curve is presented at overload, is about 111A.Even if illustrate that HTS band still keeps its critical current after overload above.
For making stabilized zone have enough current capacities, the thickness of stabilized zone is about 1-1000 micron conventionally, is the most conventionally about 10-400 micron, for example, be about 10-200 micron.The nominal thickness of embodiment is about 40-50 micron.
Leave the concrete structure of superconductive tape, Fig. 7 and Fig. 8 have shown that at commercial electric power parts be the superconductive tape using in power cable.Fig. 7 has shown some power cables 42 that extend in underground piping 40, and described pipeline 40 can be plastic tube or steel pipe.For clarity sake, Fig. 7 has also shown ground 41.As shown in the figure, some power cables can pass through pipeline 40.
Fig. 8 again, has shown a kind of concrete structure of power cable in figure.In order to provide cooling, make superconductive power cable remain on superconducting state, by liquid nitrogen conduit 44, liquid nitrogen is passed into power cable.Provide one or more HTS46 to bring and cover conduit 44.Band is placed on conduit 44 in a spiral manner, makes to be with spiral surrounding on conduit 44.Other parts comprise copper cover 48, be used for the dielectric band of these parts dielectric separation, the 2nd HTS with 52, have multiply central metal line 56 copper cover 54, larger the second liquid nitrogen conduit 58, be used for the auxiliary heat insulator 60 that keeps low-temperature condition, for corrugated steel tube 62 (comprising slip 64) and the shell 66 of supporting construction.
Fig. 9 has exemplarily shown power transformer, and this transformer has around the center core (central core) 76 around armature winding 72 and secondary winding 74.It should be noted that Fig. 9 is actually schematic diagram, those skilled in the art are readily appreciated that, the practical structures of transformer can change.Yet this transformer comprises basic armature winding and secondary winding.About this point, in the execution mode shown in Fig. 9, the coil number of armature winding is more than secondary winding 74, and this expression can be by the step-down transformer of the lower voltage of input electric power signal.Contrary, if the coil number of armature winding is less than secondary coil, can there is voltage and raise.About this point, conventionally at transmission substation, use step-up transformer to improve voltage, long apart from the energy loss in course of conveying to reduce, and distribution substation use step-down transformer by distributing electric power to user.At least one winding in described armature winding and secondary winding, preferably two windings all comprise according to above-described superconductive tape.
Refer now to Figure 10, Figure 10 has shown the basic structure of generator.Generator comprises with axle 84 and being connected, is used for rotariling actuate the turbine 82 of rotor 86.Rotor 86 comprises the high-intensity electromagnets that rotor coil forms, and electromagnet is used for producing the required electromagnetic field of generating.By the mobile effect of fluid, make turbine 82 rotations, thereby axle 84 and rotor 86 are also rotated, for hydroelectric generator, described fluid is water, and for nuclear energy generator, diesel engine generator or coal fired power generation machine, described fluid is steam.Owing to having produced electromagnetic field, in comprising the stator 88 of at least one conductive winding, produce electric energy.According to execution mode specific features, at least one in described rotor coil and stator winding comprises the superconductive tape according to above-mentioned execution mode.Conventionally, at least rotor coil comprises superconductive tape, can effectively reduce magnetic hysteresis loss.
Refer now to Figure 11, Figure 11 has shown the basic schematic diagram of power network.Power network 110 consists essentially of the power plant 90 conventionally with many generators.Power plant 90 conventionally and transmission substation 94 be positioned at same position, and be electrically connected to it.Transmission substation has many step-up power transformers conventionally, and these transformers are used for the voltage of produced electric power to raise.Conventionally, the voltage of the electric power that produces is several kilovolts, and transmission substation is increased to 100000 to 1000000 volts by voltage, in order to reduce line loss.Transmission range is generally 50 to 1000 miles, and power transmission cable 96 carries electric power through these distances.Power transmission cable 96 delivers power to a plurality of electric substations 98 (only showing 1 in Figure 10).Electric substation has many step-down transformers conventionally, and transmission level voltage (transmission level voltage), from higher lower voltage to distribution voltage, is less than about to 10000 volts conventionally.Can also configure more electric substation with network-like form, in local region for user carries out local distribution.Yet, for for simplicity, in figure, only showing Liao Yige electric substation, attention can provide some downstream electric substations with series system.Then by distribution cable 100, the electric power of distribution voltage is flowed to user 102, comprise business user and civilian users.Should also be noted that can for single or one group of user area property a transformer is provided.According to a specific features, at least one in the transformer of generator, transformer and the transmission substation in described power station 90, power transmission cable, electric substation and distribution cable can be used the superconductive tape according to this specification.
Although specifically described in this article concrete aspects more of the present invention, those of ordinary skills are readily appreciated that and can within claims scope, to it, modify.
Claims (21)
1. a superconducting article, it comprises:
There is relative first surface and the base material of second surface;
Be covered with the resilient coating of the relative first surface of base material;
Be covered with the superconductor layer of resilient coating; And
Be covered with respectively the first and second electroplated stabilizer layers of the relative second surface of superconductor layer and base material, wherein said the first and second electroplated stabilizer layers extend to form the first side surface and second side surface of superconducting article, and seal superconducting article; Described the first and second electroplated stabilizer layers form protruding shape along at least a portion side surface of superconducting article.
2. superconducting article as claimed in claim 1, is characterized in that, described the first and second electroplated stabilizer layers comprise base metal.
3. superconducting article as claimed in claim 2, is characterized in that, described base metal comprises the material that is selected from lower group: copper, aluminium and their alloy.
4. superconducting article as claimed in claim 3, is characterized in that, described base metal comprises copper.
5. superconducting article as claimed in claim 1, is characterized in that, described the first and second electroplated stabilizer layers are comprised of base metal substantially.
6. superconducting article as claimed in claim 1, is characterized in that, described resilient coating comprises the film of biaxial crystal texture, and this film has in membrane plane and the crystal of the outer arrangement of conventionally all aliging of membrane plane.
7. superconducting article as claimed in claim 1, is characterized in that, described superconducting article also comprises the covering layer between the first electroplated stabilizer layer and superconductor layer.
8. superconducting article as claimed in claim 7, is characterized in that, described covering layer comprises layer of precious metal.
9. superconducting article as claimed in claim 1, is characterized in that, described superconductor layer comprises high temperature superconducting materia, the critical temperature T of this high temperature superconducting materia
cbe not less than 77 ° of K.
10. superconducting article as claimed in claim 9, is characterized in that, described superconductor material comprises REBa
2cu
3o
7-x, wherein RE is rare earth element.
11. superconducting articles as claimed in claim 1, is characterized in that, the thickness range of described each electroplated stabilizer layer is 1-1000 micron.
12. superconducting articles as claimed in claim 1, is characterized in that, the form that described goods are superconductive tape.
13. superconducting articles as claimed in claim 12, is characterized in that, the length-width ratio of described base material is not less than 103.
14. 1 kinds of superconducting articles, described superconducting article has bilateral structure, and it comprises:
The base material with each other relative first surface and second surface;
Be covered with respectively the first resilient coating and second resilient coating of base material first surface and second surface;
Be covered with respectively the first superconductor layer and second superconductor layer of the first resilient coating and the second resilient coating; And
Be covered with respectively the first electroplated stabilizer layer and the second electroplated stabilizer layer of the first superconductor layer and the second superconductor layer; Wherein said the first and second electroplated stabilizer layers extend to form the first side surface and second side surface of superconducting article, and seal superconducting article; Described the first and second electroplated stabilizer layers form protruding shape along at least a portion side surface of superconducting article.
15. superconducting articles as claimed in claim 1, is characterized in that, described the first and second electroplated stabilizer layers are bonding in the situation that not mixing adhesive layer.
16. superconducting articles as claimed in claim 1, is characterized in that, described the first and second electroplated stabilizer layers are bonding in the situation that not mixing weld layer.
17. superconducting articles as claimed in claim 1, it is characterized in that, described goods are power cable, and this power cable comprises many superconductive tapes, and each superconductive tape comprises described base material, described resilient coating, described superconductor layer and described the first and second electroplated stabilizer layers.
18. superconducting articles as claimed in claim 1, it is characterized in that, described goods are power transformer, this power transformer comprises armature winding and secondary winding, at least one in described armature winding and secondary winding comprises superconductive tape winding type coil, and this superconductive tape comprises described base material, described resilient coating, described superconductor layer and described the first and second electroplated stabilizer layers.
19. superconducting articles as claimed in claim 1, is characterized in that, described goods are generator, and this generator comprises the axle being connected with rotor, and described rotor comprises the electromagnet that comprises rotor coil; Also comprise stator, described stator comprises the conductor winding round rotor, at least one in wherein said winding and rotor coil comprises superconductive tape, and this superconductive tape comprises described base material, described resilient coating, described superconductor layer and described the first and second electroplated stabilizer layers.
20. 1 kinds of methods that form superconductive tape, it comprises:
Provide and there is relative first surface and the base material of second surface;
The resilient coating of the relative first surface of deposition covering substrates;
Deposition covers the superconductor layer of resilient coating; And
The first and second electroplated stabilizer layers of electroplating the relative second surface that covers respectively superconductor layer and base material, wherein, described the first and second electroplated stabilizer layers extend to form the first side surface and second side surface of superconducting article, and seal superconducting article; Described the first and second electroplated stabilizer layers form protruding shape along at least a portion side surface of superconducting article.
21. methods as claimed in claim 20, is characterized in that, described plating makes superconductive tape be undertaken by electroplate liquid, wherein, superconductive tape are applied to bias voltage to form negative electrode, and anode is provided in solution; Wherein, described superconductive tape passes through solution in the mode of roll-to-roll.
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US10/607,945 | 2003-06-27 | ||
PCT/US2004/020558 WO2005055275A2 (en) | 2003-06-27 | 2004-06-25 | Novel superconducting articles, and methods for forming and using same |
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US6309767B1 (en) * | 1997-10-29 | 2001-10-30 | Siemens Aktiengesellschaft | Superconductor structure with glass substrate and high-temperature superconductor deposited thereon, current limiter device having the superconductor structure and process for producing the structure |
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2003
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- 2004-06-25 CN CN200480018114.3A patent/CN1813317B/en not_active Expired - Lifetime
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- 2004-06-25 JP JP2006517696A patent/JP5085931B2/en not_active Expired - Lifetime
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- 2004-06-25 EP EP04817705.9A patent/EP1639609B1/en not_active Revoked
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2005
- 2005-05-16 US US11/130,349 patent/US7109151B2/en not_active Expired - Lifetime
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US6309767B1 (en) * | 1997-10-29 | 2001-10-30 | Siemens Aktiengesellschaft | Superconductor structure with glass substrate and high-temperature superconductor deposited thereon, current limiter device having the superconductor structure and process for producing the structure |
US6271474B1 (en) * | 1997-11-14 | 2001-08-07 | Sumitomo Electric Industries, Ltd. | Methods of manufacturing oxide superconducting stranded wire and oxide superconducting cable conductor, and coated wire, stranded wire and cable conductor |
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WO2005055275A2 (en) | 2005-06-16 |
EP1639609A2 (en) | 2006-03-29 |
EP1639609A4 (en) | 2009-12-02 |
CA2529661C (en) | 2013-05-28 |
US7109151B2 (en) | 2006-09-19 |
WO2005055275A3 (en) | 2005-12-01 |
CN1813317A (en) | 2006-08-02 |
JP5085931B2 (en) | 2012-11-28 |
JP2007526597A (en) | 2007-09-13 |
US20060079403A1 (en) | 2006-04-13 |
CA2529661A1 (en) | 2005-06-16 |
KR101079564B1 (en) | 2011-11-07 |
EP1639609B1 (en) | 2013-09-25 |
KR20060107273A (en) | 2006-10-13 |
US20040266628A1 (en) | 2004-12-30 |
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